Harrow.



R. W. GEOSSMAN.

HARROW. APPLICATION FILED SEPT. 26, 1910.

Patented M21117, 1911 2 SHEBTS-SHEET 1.

Witnesses Inventor Attorneys R W., OROSSMAN.

HARROW.

AIPLIOATION FILED SEPT. 26, 1910.

Patented M21117, 1 911 2 slums-SHEET g.

Witnesses Attorneys UNITED s ra TES PATENT OFFICE.

ROBERT .w. cRossMAN orrExoLA, OKLAHOMA, ASS'IGNOR or ONE-HALF 'ro JOHN E.

watxnia, or TEXOLA, OKLAHOMA.

' HARROW.

To all whom it may concern:

Be it-Iknown that 1, ROBERT W. CaossMAN,

- acitiz'en of the United States, residing at Texola', in the county of Beckham and State of Oklahoma, have invented a new and useful .Harrow, of which the following isa specification.

This inventionhas relation toharrows of the cultivator type and consists in the novel construction an arrangement of its parts as hereinafter shown and described.

The'object of the invention is to provide in the form of a cultivator adapted to strad 'dle a row of plants when in operation,

means for operating upon the soil at the op-.

posite sides of the row of plants to cut out weeds and undesirable vegetation and at the same time work or cultivate the top- $011 in an advantageous-manner.

v by a frame structure and to which draft",

animals are attached. The said runners are With this object in view the. harrow includes runners which are connected together provided at their upper edges with laterally disposed portions or platforms and to the rear end portions of the runners and behind the rear end of the said platforms are attached blades which are adapted to operatein a horizontal line at or below the surface of the soil. A shaft is journaled for rotation at the rear portions of the runners 'and is provided with an intermediate arched portion which is approximately vertically disposed and alever mechanism is mounted upon the runners and is adapted when ma.- nipulated to swing-the said shaft. Rearwardly disposed arms are adjustably con-.

nected to the shaft and are so mounted that they maybe swung in lateral directions at their rear ends and secured in adjusted position. Yokes are pivotally connected to the rear ends of the said arms and means are provided for securing the said yokes in adjusted positions. The gang of harrows is journaled for rotation upon each yoke and a fender is connected with the said runners and is adapted to lie between the gang of disks at the opposite sides of the har'row.

In the accompanying drawings,-Figure 1 is a top plan view of the harrow. Fig. 2-

is a side elevation of the same. Fig. 3 is a transverse'sectional view of the same cut on the line 33 of Fig. 1. Fig. 4 is a perspective view of a. washer which is used upon the harrow. Z

tion 1Q which straddles the bar 6.

Specification of Letters Patentb Patented. Mar. 7, 1911: 1 Application filed September 26, 1910. Serial ma-33,903.

The harrow consists of vertically disposed runners 1 which 'areprovided at their .upper ends with laterally disposed platforms 2. The said runners are connected together a frame work which is mounted upon the said runners and which consists of an arched bar- 3 the intermediate portion of which is spaced between the said runners and said arched bar is provided with end portions 4 which are forwardly and outwardly disposed and which -of the said runners 1' together and a -longitudinally disposed bar 6 connects said arched bars 3 and 5 together. An operators seat 7 is mounted upon .the arched bar 5 and the intermediate portion of the bar 6 is formed in the arc of a circle and is provided with notches 8. A lever 9' is fulcrumed to the intermediate portions of the runners 1 and is also in the form of an arch which bridges the space between the runners and is provided with an intermediate handle por- A spring actuated pawl 11 is mounted upon the lever 9 and is adapted to enter the notches 8 provided at the intermediate arched portion of the said bar 6. The shaft 12 is journaled for rotation at therear end portions of the runners l and is provided withan intermediate crank or arched portion 13. A rod 14 is pivotally connected at its-rear end to the intermediate portion of the crank or arch 13 of the shaft 12 and at itsforward end is connected with the lever 9.- There-' fore itwill be seen that by swingin the-lever 9 that the rod 14 will be moved longit-udinally and'the arched portion 13 of the shaft 12 will be swung about the axis of said shaft and thus the parts of the harrow (hereinafter to be explained) which are fixed to-the end-portions of the shaft 12 may be raised or lowered.

Blades 15 are rovided at their inner ends with vertically disposed plates 16 which are attached to the outer sides of the' runners 1 and said blades 15 are horizontally disposed with the forward cutting edges 17 diverging from each other toward their rear ends at acute angles to the planes of the runners 1. The forward ends of the blades 15 are located at or.bchiud the rear endslof the platform 2 mounted uponjl e ro ect beyond the forward ends of the plat orms 2 and to 'runners 1 so that when said blades engage the flange at the surface of the ground the -sides with serrations 22.

said flange will not be wedged between the inner end portions of the blades and the rear end portions of the said platforms.

Blocks are fixed to the end portions of the shaft 12 and are provided upon their up per faces with serrations 19. The lower ends of bolts are fixed to the blocks 18 and. Wedge shaped washers 21 are located upon the bolts 20 and rest at their lower sides upon the serrated surfaces 19 of the blocks 18. The said wedge shaped washers 21 are provided at their upper and lower rrms 23 are mounted attheir forward ends upon the boltss20 and are provided with serrations 24 which engage the upper serrations 22 of the washers 21. Clamp nuts 2:) are screw threaded .upon the upper ends of the bolts 20 and hold the arms 23 in close contact with the washers 21 and also hold the said washers firmly down against the upper surfaces of the blocks 18. Thus it will be seen thatby loosening the nuts-25 that the arms 23 may be swung upon bolts 20 as axes and also the washers 21 may be turned about the said bolts 20 and when the. arms 23 have a desired shape or slant both laterally and rearwardly the said nuts 25 may be tightened. whereby the said arms will be secured in the saidadjnsted position. Clips 26 are mounted upon the rear ends of the arms 23' and are held upon the said arms by means of bolts 27 which pass transversely through the rear end portions of the said arms and the rear end portions of the said clips 26 are spaced from the rear end portions of the arms 23 and the levers 28 are fulcrumed upon the clips 26. The levers 28 are pro- .vided with cam working ends 29. Yokes 30 are pivotally mounted at their forward ends upon the bolts 27 and are provided with dentate segments 31',which lie under the intermediate portions of the clips 26 and are' adapted to be engaged by the cam ends .29 of the levers-28 whereby said yokes 30 are secured in adjusted positions upon the sand guards of woodor other material if desired. A fender is provided for the arrow and preferably consists of a piece of sheet metal which is arched longitudinally and which is'connected at its forward endportion and. at its opposite side with the rear ends of the runners 1 by means of resilient arms 36. The fender is designed to move between the inner ends of the shafts 32.v

In operation-the yl iarrow is drawn along a row of standing plants so that the runners 1 pass atthe opposite sides of the row.

As the weeds and other undesirable plants located adjacent-the sides of the row of plants which is being cultivated are encountered by the blades 15, the said undesirable plants are cut down and left upon the surface of the soil approximately at the same point at which they stood. The disks 33 then operate upon'the surface of the soil and turn or cut into the same'according to their angles of disposition and at the same time the fender passes over the standing'plants and protects the same from the soil passed up by the disk By manipulating the lever 10 the shaft 12. is turned as above described and thus the arms 23 and their at tachments may be swung up or down as desired. Also prior to operating the harrow adjacenta row of standing plantssaid arms 23 have been properly positioned with relation to the shaft 12 and the runners 1 and the yokes-30 have been properly positioned with relation to the said arms 23.

Having described the invention what I claim as new and desire to secure by-Iietters Patent is 1 A harrow comprising spaced vertically disposed runners in parallel relation, arched members connecting said runners together, an arched shaft. onrnaled'for rotation at the rear end portions of the runners, an arched lever fulcrumed upon the runners, means operatively connecting said lever with the arch of said shaft, means for holding the lever in an adjusted position, outwardly and rearwardly disposed blades secured to the rear 'end portions of the runners, arms connected with said shaft and adapted to be adjusted at their rear portions both horizo'ntallyand axially upon their points of connection with the shaft, and means for fixing said arms in their adjusted positions with relation to the shaft, yokes connected with the rear ends of said arms for horizontal adjustment with relation thereto,'and

-gangs of earth-engaging members carried by said yokes and trailing behind said blades.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses. ROBERT W. GROSSHAN.

\Vitnesses:

A. H: SKILLERN,

L. A. CHAFrrN. 

